Geometry Practice Test 2

Question : 22 of 40

Marks: +1, -0

The radius of the circumcircle of the triangle made by x-axis, y-axis and 4x + 3y = 12 is:

Solution:

4x + 3y = 12

\table x,0,3;y,4,0

By Pythagoras theorem,

(OB)^2+(OA)^2

AB^2

(4)^2+(3)^2

AB^2

AB =

√{25}

AB = 5 unit
Radius = 2.5 cm unit

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